The Eagles are definitely making it a long run in Las Vegas.

The band, which previously announced a spate of dates at the Sphere from September through December, has now added shows Jan. 17-18 and Jan. 24-25.

The Long Goodbye tour, which began in September at Madison Square Garden in New York, will now cover 20 dates over 10 weekends at the Sphere with the new additions. The already announced upcoming dates are Sept. 20-21; Sept. 27-28; Oct. 11-12; Oct. 18-19; Nov. 1-2; Nov. 8-9; Dec. 6-7 and Dec. 13-14.

Dates and ticket details:The Eagles are officially coming to the Las Vegas Sphere

How to get The Eagles Sphere tickets

Tickets for all dates through December are on sale now at eagles.com.

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Signups for presales for the January shows is open now at eagles.com. The band's presale begins at noon ET July 23 and Live Nation and Sirius XM presales at noon ET July 25. VIP packages will also be available at noon ET July 23. The general onsale takes place at noon ET July 26, also at eagles.com. Tickets start at $175 (all-in pricing).

The Eagles’ residency will follow well-received runs by U2, who christened the venue last fall, Phish and, currently, Dead & Company.

The Grateful Dead offshoot band fronted by Bob Weir and including John Mayer and Mickey Hart, are in the midst of a 30-date run that will wrap Aug. 10.

Inside the first shows:The Sphere in Las Vegas really is a 'quantum leap' for live music

Inside The Eagles farewell tour set list

The Eagles, currently touring Europe, have a set list stocked with their more laid-back hits in the first half ("Take it Easy," "One of These Nights," "Take it To the Limit") that builds to rollicking rockers including "Life in the Fast Lane" and "Already Gone" as the show continues.

The Sphere also just announced its inaugural New Year's Eve show with the EDM-focused Afterlife presents Anyma "The End of Genesys," also marking Anyma's first play in Vegas.